This is a brand new 3.5" shifter extension that is great for adding a little length to the shifter making shifting easier and faster. It is simple to install， you just remove the shift knob， screw on the extension then reinstall the shift knob. It is CNC machined from 6061-T6 aluminum for a perfect fit.This has 12mm x 1.25 threads so check to be sure that it will fit your vehicle before bidding